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(parent: f482aa9) | patch
io_uring: mem-account pbuf buckets
authorPavel Begunkov <asml.silence@gmail.com>
Thu, 4 Aug 2022 14:13:46 +0000 (15:13 +0100)
committerJens Axboe <axboe@kernel.dk>
Thu, 4 Aug 2022 14:35:07 +0000 (08:35 -0600)
commitcc18cc5e82033d406f54144ad6f8092206004684
tree66af1683c85be4c829e101b68a0978f2789ceb56tree | snapshot
parentf482aa98652795846cc55da98ebe331eb74f3d0bcommit | diff
io_uring: mem-account pbuf buckets

Potentially, someone may create as many pbuf bucket as there are indexes
in an xarray without any other restrictions bounding our memory usage,
put memory needed for the buckets under memory accounting.

Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d34c452e45793e978d26e2606211ec9070d329ea.1659622312.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/kbuf.c diff | blob | history
Domain: System / Kernel;